The book aims to equip students, teachers, scientists, and engineers with an understanding of the concepts and physical principles underpinning Microwave Vacuum Electronic Devices (VEDs).
Microwave Vacuum Electronic Devices: Enabling Concepts covers vacuum electronic devices (VEDs) operating in the microwave to terahertz frequency regime. The book aims to equip students, teachers, scientists, and engineers with an understanding of the concepts and physical principles underpinning VEDs. VEDs have manifold applications in technologies used in defense, civilian, medical, scientific, and industrial sectors. The authors build confidence among the readers seeking to design and develop VEDs in these sectors by presenting enabling concepts and step-by-step guides to the mathematical formulations used in VEDs in the microwave, millimeter-wave, and terahertz frequency range. Chapters covering important physical principles, including space-charge waves, cyclotron waves, and electron bunching (both relativistic and non-relativistic), are followed by discussions of techniques for improving the performance of VEDs. The book will be a useful reference for advanced undergraduates, postgraduates, and industry professionals seeking to understand and develop their own VEDs.
Key Features:
- Discusses practical concepts that enable readers to develop independent thinking in the design and development of VEDs.
- Provides detailed mathematical steps that make the design and development of VEDs easier to understand.
- Presents end-of-chapter questions and hints throughout to aid teaching and learning.
1 Introduction
2 Space-Charge Waves and Cyclotron Waves
3 Non-Relativistic Bunching of Electrons
4 Cyclotron Resonance Maser and Weibel Instabilities and Relativistic
Bunching of Electrons in Gyro-Devices
5 Induced Current on Electrodes due to Electron Beam Flow
6 Kinetic or Potential Energy Transfer from the Bunches of Electrons to
Electromagnetic Waves
7 Space-Charge-Limiting Current
8 Electromagnetic Wave Propagation through Helix Slow-Wave Interaction
Structure of a Traveling-Wave Tube
9 Analysis of Fast-wave Interaction Structures
10 Beam-Present Dispersion Relation of Helix Slow-Wave Structure and
Interpretation thereof for the Gain Equation of a Helix-Traveling-Wave Tube
11 Broadbanding a Helix-Traveling-Wave Tube
12 Beam-present Dispersion Relations of Fast-Wave Interaction Structures and
Interpretation Therefrom Gain Equation
13 Techniques for Widening the Bandwidth of Disc-Loaded Gyro-Traveling-Wave
Tube
14 Start-Oscillation Condition of a Vacuum Electronic Device
15 Performance Improvement of Vacuum Electronic Devices by Plasma Assistance
16 Performance Improvement of Vacuum Electronic Devices by Metamaterial
Assistance
17 Exploration of Vacuum Electronic Devices into Terahertz Regime
18 Summary
Index
Vishal Kesari received an MSc (Physics) degree from Veer Bahadur Singh Purvanchal University, India, and a PhD (Electronics Engineering) degree from the Institute of Technology, Banaras Hindu University (IT-BHU) (now known as the Indian Institute of Technology (IIT-BHU)), India, in 2001 and 2006, respectively. Currently, he is a senior scientist at Microwave Tube Research and Development Centre (MTRDC), Defence Research and Development Organisation (DRDO), Bengaluru, India. Dr. Kesari is the recipient of many prestigious awards. He is internationally acclaimed for authoring/co-authoring journal papers and books.
BN Basu received BTech, MTech, and PhD degrees from the Institute of Radiophysics and Electronics, Calcutta University, in 1965, 1966, and 1976, respectively. He is superannuated as Professor and Head of the Electronics Engineering Department and Coordinator of the Centre of Research in Microwave Tubes at the Institute of Technology, Banaras Hindu University (BHU), now known as the Indian Institute of Technology-BHU. Currently, he holds the position of Distinguished Adjunct Professor at the Supreme Knowledge Foundation Group of Institutions (SKFGI) in Mankundu, West Bengal, India. Professor Basu is the recipient of many prestigious awards, including the John Robinson Pierce Award of the IEEE Electron Devices Society, USA (2023) for Excellence in Vacuum Electronics. He is well known for authoring/co-authoring journal papers and books.
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